“‘What makes a player?’ Answers to this question, here quoted from Arsenal manager Arsène Wenger’s foreword to the newish book A Beautiful Game, are plentiful in world football. We debate the right age to go pro, the role of intensive youth academies, shifting population demographics, the dangers and benefits of increasing professionalization, and more in hopes of figuring out how to best tap the potential of millions of children playing the game with unstructured joy.” (Pitch Invasion)